CVE-2026-3438

A reflected cross-site scripting vulnerability exists in Sonatype Nexus Repository versions 3.0.0 through 3.90.2 that allows unauthenticated remote attackers to execute arbitrary JavaScript in a victim's browser through a specially crafted URL. Exploitation requires user interaction.

CVSS v3 6.1 MEDIUM

6.1^/10

CVSS v3 : MEDIUM

Vector :

Exploitability : 2.8 / Impact : 2.7

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction REQUIRED

Confidentiality Impact LOW

Integrity Impact LOW

Availability Impact NONE

Scope CHANGED

References

Link	Resource
https://help.sonatype.com/en/sonatype-nexus-repository-3-91-0-release-notes.html	Release Notes
https://support.sonatype.com/hc/en-us/articles/50609137161363	Vendor Advisory

Configurations

Configuration 1 (hide)

cpe:2.3:a:sonatype:nexus_repository_manager:*:*:*:*:*:*:*:*

History

18 Sep 2026, 15:38

Type	Values Removed	Values Added
References	~~() https://help.sonatype.com/en/sonatype-nexus-repository-3-91-0-release-notes.html -~~	() https://help.sonatype.com/en/sonatype-nexus-repository-3-91-0-release-notes.html - Release Notes
References	~~() https://support.sonatype.com/hc/en-us/articles/50609137161363 -~~	() https://support.sonatype.com/hc/en-us/articles/50609137161363 - Vendor Advisory
First Time		Sonatype nexus Repository Manager Sonatype
CVSS	v2 : ~~unknown~~ v3 : ~~unknown~~	v2 : unknown v3 : 6.1
CPE		cpe:2.3:a:sonatype:nexus_repository_manager::::::::

Information

Published : 2026-04-08 23:16

Updated : 2026-09-18 15:38

NVD link : CVE-2026-3438

Mitre link : CVE-2026-3438

CVE.ORG link : CVE-2026-3438

JSON object : View

Products Affected

sonatype

nexus_repository_manager

CWE

CWE-79

Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')

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attackers to execute arbitrary JavaScript in a victim's browser through a specially crafted URL. Exploitation requires user interaction."}, {"lang": "es", "value": "Existe una vulnerabilidad de cross-site scripting reflejado en las versiones de Sonatype Nexus Repository 3.0.0 a la 3.90.2 que permite a atacantes remotos no autenticados ejecutar JavaScript arbitrario en el navegador de una v\u00edctima a trav\u00e9s de una URL especialmente dise\u00f1ada. La explotaci\u00f3n requiere interacci\u00f3n del usuario."}], "lastModified": "2026-09-18T15:38:49.823", "configurations": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:a:sonatype:nexus_repository_manager:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "5AE56DAB-6AE6-4276-89AF-2D631DD27989", "versionEndExcluding": "3.91.0", "versionStartIncluding": "3.0.0"}], "operator": "OR"}]}], "sourceIdentifier": "103e4ec9-0a87-450b-af77-479448ddef11"}